Chilkat C/C++ Library Downloads

#include <CkOAuth2.h>
#include <CkHttp.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>
#include <CkDateTime.h>
#include <CkFileAccess.h>
void ChilkatSample(void)
{
CkString strOut;
// This example requires the Chilkat API to have been previously unlocked.// See Global Unlock Sample for sample code.CkOAuth2 oauth2;
bool success;
// This should be the port in the localhost redirect URL for your app.// Important: Make sure the redirect URI in your Azure app registration // is exactly "http://localhost:3017/". Don't forget the ending "/" char.// The redirect URL would look like "http://localhost:3017/" if the port number is 3017.
oauth2.put_ListenPort(3017);
// Get the endpoints from the Azure Portal in the "endpoints" section of App Registrations..// The DYNAMICS-ENDPOINT-GUID is a Tenant dynamics-endpoint-guid such as 1b54e7ee-d61b-4f12-a621-a6b2805b98c2
oauth2.put_AuthorizationEndpoint("https://login.microsoftonline.com/DYNAMICS-ENDPOINT-GUID/oauth2/authorize");
oauth2.put_TokenEndpoint("https://login.microsoftonline.com/DYNAMICS-ENDPOINT-GUID/oauth2/token");
// Replace these with actual values.
oauth2.put_ClientId("DYNAMICS-CRM-CLIENT-ID");
oauth2.put_ClientSecret("DYNAMICS-CRM-SECRET-KEY");
oauth2.put_Resource("https://mydynamicsdomain.api.crm.dynamics.com");
oauth2.put_RedirectAllowHtml("<html><body><p>Thank you for granting access.</p></bod></html>");
oauth2.put_RedirectDenyHtml("<html><body><p>Maybe next time...</p></bod></html>");
// Begin the OAuth2 three-legged flow. This returns a URL that should be loaded in a browser.const char *url = oauth2.startAuth();
if (oauth2.get_LastMethodSuccess() != true) {
strOut.append(oauth2.lastErrorText());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
// We can pre-check the URL by sending a GET to catch any up-front errors.// If we receive JSON with an error in response, then we don't proceed any farther.// If we receive an HTML response, and the response status = 200, then all should be OK.// We can proceed by displaying an interactive browser loaded with the url.CkHttp http;
CkStringBuilder sbPreCheck;
success = http.QuickGetSb(url,sbPreCheck);
if ((http.get_LastStatus() != 200) || (sbPreCheck.StartsWith("{",true) != true)) {
strOut.append("JSON Error Response:");
strOut.append("\r\n");
strOut.append(sbPreCheck.getAsString());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
// If the HTTP request itself failed, then examine the error.if (success == false) {
strOut.append(http.lastErrorText());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
// OK.. the pre-flight check seems OK, go ahead with getting the interactive user authorization..// At this point, your application should load the URL in a browser.// For example, // in C#: System.Diagnostics.Process.Start(url);// in Java: Desktop.getDesktop().browse(new URI(url));// in VBScript: Set wsh=WScript.CreateObject("WScript.Shell")// wsh.Run url// The GitHub account owner would interactively accept or deny the authorization request.// Add the code to load the url in a web browser here...// Add the code to load the url in a web browser here...// Add the code to load the url in a web browser here...// Now wait for the authorization.// We'll wait for a max of 30 seconds.int numMsWaited = 0;
while ((numMsWaited < 30000) && (oauth2.get_AuthFlowState() < 3)) {
oauth2.SleepMs(100);
numMsWaited = numMsWaited + 100;
}
// If there was no response from the browser within 30 seconds, then // the AuthFlowState will be equal to 1 or 2.// 1: Waiting for Redirect. The OAuth2 background thread is waiting to receive the redirect HTTP request from the browser.// 2: Waiting for Final Response. The OAuth2 background thread is waiting for the final access token response.// In that case, cancel the background task started in the call to StartAuth.if (oauth2.get_AuthFlowState() < 3) {
oauth2.Cancel();
strOut.append("No response from the browser!");
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
// Check the AuthFlowState to see if authorization was granted, denied, or if some error occurred// The possible AuthFlowState values are:// 3: Completed with Success. The OAuth2 flow has completed, the background thread exited, and the successful JSON response is available in AccessTokenResponse property.// 4: Completed with Access Denied. The OAuth2 flow has completed, the background thread exited, and the error JSON is available in AccessTokenResponse property.// 5: Failed Prior to Completion. The OAuth2 flow failed to complete, the background thread exited, and the error information is available in the FailureInfo property.if (oauth2.get_AuthFlowState() == 5) {
strOut.append("OAuth2 failed to complete.");
strOut.append("\r\n");
strOut.append(oauth2.failureInfo());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
if (oauth2.get_AuthFlowState() == 4) {
strOut.append("OAuth2 authorization was denied.");
strOut.append("\r\n");
strOut.append(oauth2.accessTokenResponse());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
if (oauth2.get_AuthFlowState() != 3) {
strOut.append("Unexpected AuthFlowState:");
strOut.appendInt(oauth2.get_AuthFlowState());
strOut.append("\r\n");
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
return;
}
strOut.append("OAuth2 authorization granted!");
strOut.append("\r\n");
strOut.append("Access Token = ");
strOut.append(oauth2.accessToken());
strOut.append("\r\n");
// Get the full JSON response:CkJsonObject json;
json.Load(oauth2.accessTokenResponse());
json.put_EmitCompact(false);
// The JSON response looks like this:// {// "token_type": "Bearer",// "scope": "user_impersonation",// "expires_in": "3599",// "ext_expires_in": "0",// "expires_on": "1524783438",// "not_before": "1524779538",// "resource": "https://mydomain.api.crm.dynamics.com",// "access_token": "...",// "refresh_token": "...",// "id_token": "..."// }// If an "expires_on" member does not exist, then add the JSON member by// getting the current system date/time and adding the "expires_in" seconds.// This way we'll know when the token expires.if (json.HasMember("expires_on") != true) {
CkDateTime dtExpire;
dtExpire.SetFromCurrentSystemTime();
dtExpire.AddSeconds(json.IntOf("expires_in"));
json.AppendString("expires_on",dtExpire.getAsUnixTimeStr(false));
}
strOut.append(json.emit());
strOut.append("\r\n");
// Save the JSON to a file for future requests.CkFileAccess fac;
fac.WriteEntireTextFile("qa_data/tokens/dynamicsCrm.json",json.emit(),"utf-8",false);
SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
}